Index: portage-2.1_pre3-r1/bin/emerge
===================================================================
--- portage-2.1_pre3-r1.orig/bin/emerge
+++ portage-2.1_pre3-r1/bin/emerge
@@ -2099,36 +2099,17 @@ class depgraph:
 						if (myver != portage.VERSION) and \
 						   ("livecvsportage" not in portage.settings.features):
 							if len(mymergelist) > mergecount:
-								myargv=sys.argv
-								myr=0
-								for myra in range(len(myargv)):
-									if myargv[myr][0:len("portage")]=="portage":
-										del myargv[myr]
-										myr-=1
-									if myargv[myr][0:len("sys-apps/portage")]=="sys-apps/portage":
-										del myargv[myr]
-										myr-=1
-									myr+=1
 								emergelog(" *** RESTARTING emerge via exec() after change of portage version.")
+								del portage.mtimedb["resume"]["mergelist"][0]
 								portage.portageexit()
-								# Remove --ask from options before restarting
 								mynewargv=[]
 								badlongopts = ["--ask","--tree","--changelog"]
-								badshortopts = ["a","t","l"]
-								for arg in myargv:
-									if arg[0:2] == "--":
-										if arg in badlongopts:
-											continue
-										mynewargv += [arg]
-									elif arg[0] == "-":
-										myarg = "-"
-										for ch in arg[1:]:
-											if ch in badshortopts:
-												continue
-											myarg += ch
-										mynewargv += [myarg]
-									else:
-										mynewargv += [arg]
+								for arg in myopts:
+									if arg in badlongopts:
+										continue
+									mynewargv.append(arg)
+								if "--resume" not in mynewargv:
+									mynewargv.append("--resume")
 								os.execv("/usr/lib/portage/bin/emerge", mynewargv)
 
 			if ("--pretend" not in myopts) and ("--fetchonly" not in myopts) and ("--fetch-all-uri" not in myopts):